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High power far-infrared optical parametric oscillator with high beam quality

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A high power ZnGeP2 (ZGP) optical parametric oscillator (OPO) with good beam quality pumped by a Q-switched Ho:YAG laser was demonstrated. The maximum output power of the ZGP OPO with a four-mirror ring cavity was about 5.04 W around 8.1 μm with 83.9 W Ho incident pump power, corresponding to a slope efficiency of 9.2 %. The ZGP OPO produced 36.0 ns far-IR pulse laser in the 8.0-8.3 μm spectral regions. The beam quality was measured to be M2∼1.6 at the highest output power.

Original languageEnglish
Title of host publicationHigh-Power Lasers and Applications VIII
EditorsUpendra N. Singh, Ruxin Li, Robert F. Walter
PublisherSPIE
ISBN (Electronic)9781510604513
DOIs
StatePublished - 2016
EventHigh-Power Lasers and Applications VIII - Beijing, China
Duration: 12 Oct 201614 Oct 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10016
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceHigh-Power Lasers and Applications VIII
Country/TerritoryChina
CityBeijing
Period12/10/1614/10/16

Keywords

  • OPO
  • far-infrared
  • nonlinear frequency conversion

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